function choices()
{
//elegir el numero de banner que se desean insertar, ej: 6
this[0] = 1;

// PRIMER BANNER, Tradedoubler. Kelkoo
this[1] = '<a href="http://clk.tradedoubler.com/click?p=58936&a=287784&g=0&url=http://www.kelkoo.es/c-169901-viajes.html" target="_blank" style="text-decoration:none"> <font face="Verdana" color="#336600">Compara precios</font></a>';


//si se pone arriba ej: 7 aqui aņadir this[7]=' codigo ';
}
function popUpBanner(list)
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
}
function grabBanner()
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
return Banner;
}
document.writeln(grabBanner());